Improvement in the construction of masks



2 SheetsrnSheet 1.

L. GIBBARDT. Gonstruction of Masks.

Patented my 1874 Fig:

Amm!!! ma fig Inventor:

Witnesses tures in the same for UNITED STATES PATENT OFFICE.,

LEONHARD GIRBARDT, OF NET YORK, N. Y.

IMPROVEMENT IN THE CONSTRUCTION OF MASKS'.

Specification forming part of Letters Patent No. 152,740, dated Jlily 7,1874; application led May 14, 1874.

To all whom t may concern:

Beit known that I, LEONHARD GIRBARDT, of the city, county, and State ot'New York, have invented certain Improvements in Masks to be applied tohats and caps, of which the following is a specication:

This invention consists of a method of forming a mask to be applied tohats and caps, which is constructed of flexible material, with aninterposed layer of india-rubber or its equivalent, and pressed betweendies possessing the contour of the face, as will be hereinafter fullydescribed.

Referring to the drawings, Figure l is a front View of av cap containingmy invention, the view showing the band extended. Fig. 2 is a verticalsection of Fig. l. Fig. 3 is a like vertical section taken when the bandis folded u p. Fig. 4 is a front View of a cap of a different style,also containing my invention, the band being shown extended. Fig. 5 is asectional View of Fig. 4. Fig. 6 is a like section taken when the band(in Fig. 4) is folded up. Fig. 7 is a detailed sectional View of themask, taken through the nose part, the scale being somewhat enlarged.

Similar letters indicate corresponding parts.

In carrying out my invention, I take two pieces of iiexible material, Dand E, and interpose between them a thin layer or sheet of india-rubber,F, and out the same to the proper size of the human face, and thenprovide aperthe eyes, after which it is subjected .t0 pressure betweenheated dies having the vcontour or outline of the human face, so as toimpart a corresponding shape, and to produce in it the general outlinesof the nose and brow and side face and chin of the human face.

The mask, constructed as abovedescribed, is designed to be attached to ahat or cap, which latter is constructed with a band, B, that will dropdown, as shown in Figs. l, 2, 4, and 5, or folded up around the baseofthe ears, as shown in Figs. 5 and 6.

In applying the mask, I take a portion ot the front part of the band B,of suicient cX- tent to cover the face, and line it with a suitablelining, and interpose between the two the layer or sheet of rubber F,and then unite the lining and band, so as to confine the rubber betweenthem. The portion selected for the mask is cut to the proper size of thehuman. face, and the apertures for the eyes made, and then subjected topressure.

I do not broadly claim the combination of a flexible mask with a hat orcap, for sach is old; but

I claim- The method of forming a mask of iiexible material by means ofinterposed india-rubber, or its equivalent, and of diesV possessing thecontour of the face, substantially as herein dcscribed.

LEONHARD GIRBARDT. Witnesses:

W. HAUFF, E. F. KASTENHUBEE.

